Plate, various views of the jaws and teeth of the Delphinus gangeticus by unknown artist Plate containing figures 1-4 showing the upper and lower jaws, a tooth in the growing state, and an adult tooth of the Delphinus gangeticus [Ganges river dolphin]. Subject: Zoology Published in Philosophical Transactions as 'A description of the teeth of the Delphinus Gangeticus'. Read 4 June 1818. [1818]